Hydro & Marine Shovel, or PTss21

[yurkanip]

I build mostly wood riggers etc...and I am going to be purchasing my first fiberglass hull soon. I was curious...if any of you have run the h&m 30" shovel on FE or the PTss21 on Fe. If so, what are your setups, speeds and general opinions of these two hulls. I have heard a lot about the ptss21. Would love to hear opinions on the Hydro & Marine shovel (the hawaii kai hull, on fine design rc) is this really a 60 mph hull..like I have heard?
pics would help a lot.

Thank you.

[raptor347]

Both boats can go 55-60. The H&M takes more tuning to get it there. I've run both and both require sponson mods to get them to reliably run in that speed range.

[properchopper]

I have an H&M shovel that Brian modded the sponsons on. Neu 1515 1Y,Hydra 240, 4S2P 35C 5000 Elites, X642, modded Kintec turn fin, 8 0z. lead in the nose. Runs in the low sixties all day long with way more prop possible. Temps reasonable & conserative amp draw, so I'm not pushing it any further. A little jumpy until up to flat out speed but settles in nicely in the straights, still dialing in the trim. Turns well if not smoothly at speed . I'm pretty sure the PT would make a better heat race boat from what I've read, BTW. Hoping my new build, the 30" Vegas FE conversion works out, just finished it today[see build thread]. Will test run next week.

[Fluid]

You can put enough power in almost any hull of this size and go 60 mph; the real question is how reliable will it be? Will you have to wait for glass-smooth water and no wind, or can it run in any reasonable condition?

One of our club members has a SS21 (one of Brian's old hulls) that is surprisingly stable in some pretty rough race water and wind - in fact in almost two years of racing I can only remember it flipping once, and we race six heats a month. It runs in the high-50s in an oval heat - most speed quotes you read are on flat water running alone. I have not seen the H&M hull run, but I'd expect it to be a little less versatile and require more tuning to keep it reliable in varied conditions.

One important thing to note is that the PT hull will require a LOT of work filling pin holes, priming and painting if you want a nice finish. The H&M hull has a quality gelcoat from the factory and can be run with nothing more than stickers - if that.






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[properchopper]

I agree with you Jay. Funny thing is, I was ready to start a PT & then KevinLew's H&M came along so I picked it up for some fun running. Second time I was ready to get a PT Paul Pachmeyer offered the Vegas for a reasonable price so there you go. I can't find a race within a 400 mile radius so I mess around with the IC crowd at Legg mostly. The H&M is a wild ride in gasser water & I'm sure the Vegas won't do any better, but I'm just a driving impared pond blaster anyway having some fun in the meantime.

[yurkanip]

Thanks guys for the info.
What sponson mods need to be done to both to run upper 50s+ ? is it similar to the dunlap mods for the miss vegas? flattening and adding more AOA ?

I understand about the finishing of the ptss21 hull. I love building so the filling should be easy, just takes time. From what I gathered, the h&m shovel..is a fast boat, with lots of tuning...but still flighty in rough water. ? and the ptss21 can be stable...with 4s2p and lots of tuning as well...with less work done to the sponsons? This is what I got from all of your posts combined. Correct me if I am wrong please.

HHmmm...price wise...they are about 80 dollars difference..give or take.

I will keep reading...anyone have a pic or two, or vids of either boats, and lipo placement in them.

Thanks again all.

[yurkanip]

Fluid....I'd love to see pics of that red white blue ss21 from your club. Do they have any of the inside?

[yurkanip]

Brian Baus. Can you elaborate or show pics of the sponson mods required to both hulls? Would be greatly appreciated.

[yurkanip]

Bump. Brian..Can you please elaborate on the mods to the sponsons? already sent you an email.

??